beda11a079
The X25519 implementation comes from libsodium. Explicit copyright notices have been added to each file as well as some portability changes (e.g. align.h).
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/*
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* ISC License
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*
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* Copyright (c) 2013-2019
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* Frank Denis <j at pureftpd dot org>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef x25519_ref10_H
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#define x25519_ref10_H
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define crypto_scalarmult_curve25519_BYTES 32U
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size_t crypto_scalarmult_curve25519_bytes(void);
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#define crypto_scalarmult_curve25519_SCALARBYTES 32U
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size_t crypto_scalarmult_curve25519_scalarbytes(void);
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/*
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* NOTE: Do not use the result of this function directly for key exchange.
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*
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* Hash the result with the public keys in order to compute a shared
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* secret key: H(q || client_pk || server_pk)
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*
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* Or unless this is not an option, use the crypto_kx() API instead.
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*/
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#define crypto_scalarmult_curve25519 hc_hcrypto_scalarmult_curve25519
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int crypto_scalarmult_curve25519(unsigned char *q, const unsigned char *n,
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const unsigned char *p);
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#define crypto_scalarmult_curve25519_base hc_hcrypto_scalarmult_curve25519_base
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int crypto_scalarmult_curve25519_base(unsigned char *q,
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const unsigned char *n);
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#ifdef __cplusplus
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}
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#endif
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#endif
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